GB/T 1845.1-2016
Plastics—Polyethylene(PE) moulding and extrusion materials—Part 1: Designation system and basis for specifications
- Standard No.
- GB/T 1845.1-2016
- Language
- Chinese
- Release Date
- 2016
- Published By
- 中华人民共和国国家质量监督检验检疫总局、中国国家标准化管理委员会
- Latest
- GB/T 1845.1-2016
- Replace
- GB/T 1845.1-1999
- Scope
- This part of GB/T 1845 specifies the nomenclature system for polyethylene (PE) thermoplastic materials, which can be used as the basis for classification. Different types of polyethylene thermoplastic materials are distinguished by a classification system based on the values of the following specified characteristic properties and recommended uses and/or processing methods, important properties, additives, colorants, fillers and reinforcements: a ) density; b) melt mass flow rate. This section applies to polyethylene homopolymers and other copolymers with a mass fraction of 1-olefin monomers less than 50% and non-olefin monomers with functional groups not exceeding 3%. This section applies to materials that are conventionally in the form of powders, granules or crumbs, unmodified or modified by colorants, additives, fillers, etc. This section does not apply to masterbatch and EPM rubber. This section also does not apply to ultra-high molecular weight polyethylene (PE-UHMW). Refer to GB/T 21461.1-2008 for the nomenclature and classification of ultra-high molecular weight polyethylene. This section does not imply that materials with the same name must have the same properties. This section does not provide engineering data, performance data or processing condition data required to describe the special use and (or) processing method of the material. If necessary, these additional properties can be determined according to the test methods specified in Part 2 of GB/T 1845. Additional requirements may be given in character group 5 in order to specify a particular use of a polyethylene thermoplastic material or to ensure reproducibility of processing.
GB/T 1845.1-2016 Referenced Document
- GB/T 1033.2-2010 Plastics.Methods for determining the density of non-cellular plastics.Part 2:Density gradient column method
- GB/T 1844.1-2008 Plastics.Symbols and abbreviated terms.Part1:Basic polymers and their special characteristics
- GB/T 1845.2-2006 Plastics.Polyethylene (PE) moulding and extrusion materials.Part 2: Preparaation of test specimens and determination of properties
- GB/T 21461.1-2008 Plastics.Ultra-high-molecular-weight polyethylene(PE-UHMW)moulding and extrusion materials.Part 1:Designation system and basis for specifications
- ISO 1133-1 Plastics — Determination of the melt mass-flow rate (MFR) and melt volume-flow rate (MVR) of thermoplastics — Part 1: Standard method*， 2022-06-23 Update
GB/T 1845.1-2016 history
- 2016 GB/T 1845.1-2016 Plastics—Polyethylene(PE) moulding and extrusion materials—Part 1: Designation system and basis for specifications
- 1999 GB/T 1845.1-1999 Polyethylene(PE)moulding and extrusion materials--Part 1: Designation system and basis for specifications